Firearm.



J. D. PEDERSEN.

` FIREARM. APPLICATION FILED 1315.16, 1912. 1,044,568. Patented Nov. 19,1912.

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J. D. PEDERSEN'QM PIREARM.

APPLICATION PILBD'PBB. 1e, wgz.

Patented Nov. 19,1912.

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Patented Nov. 19, 1912. l

FIREAEM.

`J. D. PBDBRSEN.

APPLICATION FILED PBB.16, 1912.

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Specification ef Letters Patent.

Application led February 16, 1912. Serial No. 677,970.

- granted to me July 5, 1910, to which ret'erence may be had for a general description ot the construction'and mode of operation of one mechanism suitable for having my present improvements applied thereto.

The object of my present invention is to.

furnish means ap licable or supplemental to mechanisms of the class described in my said prior patent, whereby to effectively control the action of the same and more fully guard against the possibility of accident-.or defective operation from any cause.

One of the objects which I have sought tol accomplish when my present improvements:-

are applied to any system of mechanism such as or analogous to the one illustrated in said prior patent, is to lock the scar into engagement with the cooked firing-pin prior to the complete placing and blocking of thev breechvblock in tiring position,v andV to lock the :block-actuator against retraction at lor vloefore the unlocliing of the scar. f

In this application, l have illust-rated my vpresent improvements as adapted and applied to theparticular toi-in. and arrangement of mechanism shown in said prior patent.: and, therefore, for convenience-in illustrating these improvements, l have reproduced in the accompanying drawings the principal views of tliedrawings in that patent, but modified to also represent the improvements which aie non' added; these vie\\'s,. with others ll have made supplemental thereto, aie as follows:

yFigure 1 is a sectional side view. (corresponding with Fig. 3 of said Patent No. 963,171.) showing the loaded fire-arm with its mechanism in ppsition ready for firing. Fig. 2 is a siinilarsidevieiv showing the mechanism in the same position as in Fig. 1,

but after 4tiring and with siich changes in the position of certain parts result from pull- 4ing the trigger. Fig. 3 is a similar side view (corresponding to Fig. 5' of the said patent) drawn adjacent to `Fig. 1, to facilitate conr -6 is a cross-sectional view in line parison therewith, and showing the slidable breech-block in nearly its fully open -or retracted position, and the shell 'of the spentv cartridge 'about to be ejected. Fig. Ltis a similar side view (corresponding vvith Fig.

7 of the said patent) showin the mechanism after the block and lthe details thereon have been carried back to their extreme rearward vposition (not shown) and then carried forward nearly to their position in Fig. 3; this view, Fig. 4, illustrates the manner of elevating a new cartridge into positionready for re-loading the fire-arm, and 'with the scar locked into engagement with the cocked firing-pin. Fig. 5 is a similar side-view, (corresponding to Fig.v of said patent), showin the breech-block mechanism carried orwar nearly to its extremeforward position, ready for the block to be elevated at Patented N0v.19,1912.

its front end into locked engagement with the frame or receiver, and to be blocked in vsuch position ready or tiring, as shown in Fig. 1 of the accompanying drawin s.- Fig. -G of Fig. 1, and corresponding with Fig. 18of said patent; it. is reproduced herein to facilitate comparison of the preceding views With each other and with those which follow.

Fig. 7 is a similar sectional View, on line H-H, of Fig. 2, and illustrates one Way of' mount-ing the scar-lock in a space between the side Walls of the block of thebreech mechanism. Fig. Sis an enlarged, perspective detail View of the form of scar-lock which is shown in the. preceding figures. Figs. 9, 10, 11, and l2, arev enlarged sideviews, (in which some details are shown partially broken away) of the slidable breechblock mechanism, for more clearly illustrat-ing the successive positions. which the parts thereof assume during a complete cycle of their movements in the operation of the Ere-arm: these vievvs correspond to Figs. 1, 2, 3, and 5, respectively, of the accompanyingdrawings. Fig. 13 isan end elevation' of the hlocklactuator `portion, B, of the action-bar.

with and below" Fig. A10, to facilitate coinparison therewith, and Fig. 15 is a sectional view taken on line A-A, Fig. 5, looking in the direction of the arrows.

Similar characters designate like parts in all the tigures. Such reference characters as are shown in the drawingsand are .not mentioned herein, will bejeiliid described ig. 14 is an under side view of the block mechanism, 'drawn in projectionA its tubuiar magazine, A the bioelv aetiiator portion n esignaiecl in a generai way w Q52, and its attaebing n'zeans; tbe it?, pivot guarfi 70, and safety-'look il, with their minor de tails; the magazi11e-spring :30, follower 5i., and the Cartridges, are X., K, supplied theren by to the loading mechanism; the extractor, 29, and the means for 'supporting anal operating the same.; the cartridge carrier, 60, its pivot, Gl, and its actuator device 65, with their (letails and appurtenanees; the loo ding loor,"52, with its opening 52, anti tbe pivot tlirreo Iiytbe. triwer oia'te and spring; the slitlabie breeoirbioelt, 25,

with its cortridge-boicling grooves and lips,-cams and shoniders,--its looking face a, and the means for engaging or carrying the several. operative @artist-except as to rthe sear-look and aetuator therefor hereinafter described anti not shown in saiti patent; the tiringpin, 30, 'with its Sear-catch, actuator 37a, look-pivot 35, maint-Spring 33,

yand soar-pivot the senr, 3l, except as to the Sear-look oatcb hereinafter desoribeli; the reeiprocatory inertiamiei/niiet, as, Si, with its Connected sbeli-e]eotor, 4G, and its operative oonneetion 36a with en arm of the aotion-bar lock; and the tlerice, as 38, for ,manually disengaging the aetionebar look, as shown in Fig. 15.

In place of tbe action-bar lool: 36 of said prior patent, f I have herein substituted therefor a combined faction-bar-lock and sear-look-retractor, which, for convenience, I have 'herein designated in a by the reference number lAs in my said prior patent-, the siidable breeelrblock, is herein shown fitted to rcceive afiring-'pin niernber, 3G, which is arranged "to slide therein` and with the sear,

Si, and"'the"`aetonbarlock, 36, both pivotallyis'pported thereon and located between Vtliz'gder'ienling side-walls of the block. For lilireetly voo-aoting with these two members "Bland 36, and for indireotlybut positively 'oocting throughV these members with y tiring-"pin and other members, I have prt f-"'id'edya rotatively-retractable soar-look, lo-

"cated `on a pivot is in the block 25, in position to engage with the Sear for looking the Santino @noemen .web

general Way tl'netet'i iringpin; and `in position for being; itself retract-eri ont of such sear engage nient by tbe member 36. In this instance I bate shown the Sear-flock, designated in a general way by fir, as having the form ot a retraetably support-ed member on a. pivot, In',

which .is preferably a screw or pin removably supportefi in the (lepending side walls of the breeelrbioek For this member 7c, I prefer tbe rotative or oscillatory form illustrated in the perspective detail View, Fig. 8, and also shown Withsome portions broken away, in Figs. 'l' and '9 to l2, which illustrate the stepby-step operation of the same. For engaging the sear, (as in Fig. l2)` this membei' has a ioelrfaee at 1, and at Z2 has a bearing faire for some suitable sear-loolc aotnator, preierabiy ot a constantly acting character, z, which is shown carried by the bloei; Another bearing face, ,s il, is located for being acted u on by an arm or faee'oftlie 'member 3G, W ereby to retract tlie'sear-loclr 1 ont or". the position. Where it might engage the seall for locking the same; suoli a retracted position is shown in Fig.` 1'),

The. iringwpin, as 80, is shown arranged to have, as nsualin the said ela-ss of tiret arms, a springlerived forward movement. or stroke, and a nianuallyferivecl backward stroke or movement into the cooked or readytoeire position, as shown for instance in Fig. l2. W'l'ien in this retracted position, tbe hook or cato-b 31.* on the Sear 31 engages with tbe eorrespontiing Sear-catch 30h of the firing-pin, and for disengaging these catehes withdrawing the senr away from the tir ing-pin, some suitable devine or trigger may be used, as for instance the trigger 4G, more fully described in my said prior patent; butot-her kinds or forms of sear-retracting or trigger devices may be preferable and may therefore be employed in some instances. By tbe term stroke of the. firing pin, and

stroke of the firing-pin member, I referto the movementof such member relatively to the breecheblock.

On the reeoil of the fire-arm, the inertia block 3?, operating through its connection with the arm 3G, acts in a forwardly clirection relatively to the movement of the firearm, to turn or oseiilate the member 36 on itspivot 35 and thereby forcibly elevate or retract to its ineiieetive position, the bearing farol-36h of the. rearward arm,-or lever arm,

y 36 of said member 36 away from the searloek 7c, which is thus rendered normally operable by its actuator 1. The operative-- oonneotion between the members 36 and 3T thereby from each said member to the other. In .this instance, tbe arm 3G" serves as a .Sear-lock retraetor torv reieasing tbe Sear, While-tbe spring-operated actuator t serves as the sear-iock actuator for :moving the searflooir (Whatever may be the style or 'i ould be snehthat force may be transmitted for'm or Specific construction which vthis may have)` into position at the proper time for so eno'a in' with the Sear as to ositivel hold or lock the same in engagement with thefiring-pin catch, (see Figs. vll and l2). For this purpose the sear is provided at some suitable'location thereon with a catch, as 3l", made and located for acting in opposi- -tion to the retractive or tiringmovement of the. sea-r. In practice l' tind it to be convenient, and'ideenr it to bc desirable. to locate this sear-lockengaging catch at and on the forwardeud or arm of the scar. and I have. therefore. selected this. arrangement for herein illustrating the said feature'and the combinations involving the same.

f'l`he.searloek actuators, as t and 37,.of

i relati'vely small and relatively-large force,

respectively, consist essentially ofsome suitablefand properly located springs, but in practice these springs are pretcably ot' the usual helical kind suppliedwith some guidepin or bearing piece supplemental thereto and which bears directly on the member to be actuated thereby, and therefore for con- .venience I have herein considered those spring-actuated parts zt.A and 37, as being spring operated actuators of and" for the members L and 36, respectively.

.In respect of the Sear-lock L', the breechblock .mechanism comprises two scar-lock actuators, (as tand 3.78,) which operate jon -th'e scar-lock, the one (t) directly and conv..tinuous1y, and thepther (37a) indirectly and intermittently; but said device 37a is `more properly a connection or .transmitter from '.the firing-pin member. 30, from Whlch the power is immediately derived: and7 hence, I regard the ring-pinas the actuator proper of thismultifunction member 36. The ac tuatorashould, ofcourse/,have an actuation power greater than that of the device t. The device 37a vis operated into active relation with the leverarm 36?* by the backward stroke of the tiring-pin member, and when arranged as hereinvshown has a sliding engagem'ent with. the member 36. Said mechanism further",comprises a locking device which consists of two co-actiiig locks, (as and 3(3) bothoperable byone actuator (as 372') which has atraveling: movement relatively to each of' these locks. and whereby one said lock becomes operative for its locking-function alternately with the other said lock; and, whereby thefbreech-block releaser 4 is locked against action while the scar in its firing position is being` unlocked or released for retraction 'to fire the tire-arm.

I when the Sear-lock' is retracted (Fig. 9) 1t is' held in this position by the retractor 'f levice, as 36, (preferably having the form and arrangement of a pivotally supported lever-arm), until this device shall itself be shifted or -operated into its own retracted position, Figs. 10, 11 and 12. This retraction of the sear-locltrctractor is directly et'-` fected, in the present instance, by the forward or tiring stroke of the reciprocatory firingpin member 230, which, in practice, may act for'this purpose through some lsuitable actuator or transmitter-connection, as 37a; this actuator-connection is operative or movable with said member 30. and is thereby locatable alternately in two operative posi tions. lly such means the Sear-lock is re lcased'and allowed atonce 'to assume a normally cugageable position relatively to the Vthe carrier and actuatorl for said intermediatev member rl`he member 36, considered with respect to thesaid plurality of func?,

tions thereof, may be said to be operativelyintermediate between the Sear-lock and the firingpin member. and also between the Sear-lockv andthe block-actuator portion B, vvof the action-bar. A.

The block-actuator. as B, during its rear ward stroke relatively tothe block 35, constitutes combined in one device, a tirin -pin retractor and a retractor for the searochretractor, wherebythis latter device is held in an inoperative relation to the Sear-lock during the backward` stroke of the tiringpin to its cocked position in said block.

Thus. in 'this two-lock safety-device, the lock-actiontiming means is operable by the (eo-action of the block-actuator and the transinitter-connection for scar in locked positionY until ythis blockactuator has been locked in ringposit-ion.

The `slidable breechfblock, 25, (as more fully described-in my said Patent #963,171 l,

hasan extended longitudinal movement in the trame or rece1ver, 21, and at its forward end has an upward movement into cngagement. with a frame abutment, 2G'. for sustainnig the pressure of the fired cartridge, and froth' thence has a downward movement t'or. disen aging the face 25a of the block 25, tromsuc recoil abutment. -These move- `ments are imparted to the block 25 by the action-bar 27, the rearward end of which has vinclined faces and other details (also more fully described in said patent) whereby this part of the action-bar serves as the blockaetuator for the said longitudinal movements, and also for the upwardand downward movements of the forward end -ofA the retaining the.

blrcl. For this latter purpose, the said l.lockoperati1ig portion of the action-bar serves at the end of the forward stroke thereof as a. block-liftingdevice or bloote placer, and at the beginifiiufr of the rearward stroke thereof` aa a block-t epreseiug device, or bloclt-releasergr and therefm'e l have herein designated the rearward part, B, of the actitmbar as the bloclcactuator and also as the block placerereleascr.

The normal position of the details of the mechanism at the .moment a'l'tcr tiring a` cartridge, is shown in Figs. EZ a nd l0. At this ti ne the sliding member 1%() is in its extreme ft ward position in the block Q5; and the lock 36 has its forward end -tf below the guidesurface or stop-face 527" of thc placerreleaser B, which is thus left At'reeto be slid rearwardly by the ope ator. 0n this more# ment taking place, the block-releaser .l tiret passes over the lock end 36m, (sce Figs. 'l0 to 12)', and' depresses the block out of engage`- ment with the recoil abutment 2G, to the position in Fig. 12. As a result of this action, `Said lock-end 36m is held in its Said downward position until the block-actuator, l, again goes foi-Ward and elevates the block into engagement with .said recoil abutment; but this replacingl of the block 25 (eee Fig. 9) is complete before the actuator B quite reached its forward position, so that the lock 3G is not permitted to be shifted by the loch-actuator 37, untilsuch forward movement of the member B is 'fully completed, when, by the passing oit the locking face It forward of the lock-end 25(5, this 'loch-end isinstantly forced up rearwardly of the block-a-ctiiator B, and at and by this movement, said member 3 also instantly re* tracts 'the sea.rlock la from its engagement with the Hear, and thereby permits the scar to be withdrawn from itsI engagement with the firing-pin- Thus the member B operates not only as the block' placer-relea ser but also operates to time or delay the retraction ot the lock until after thisl block-aetiiator yha been itself placed and locked in the tiringr position. The device 37 is one kind or form ot' intermittently-acting retractor-operating means which may be so employed as to be operatively-intermediate to thc scar-loct-retractor -and the tiring-pin member,

The blockeetuator, B, is also the tiring- I pin retractor, since on the back stroke there- "before .0f the of, its face 27C bea-rs against the retraction-i face 30C of the tiring-pin 30, and so retracts or slides backward thatA member in the block 25: this;y is more fully set forth in detail in my' said prior patent;I But the said face Q70 ofv actuator B constitutes a stop or safety abutment against which the firing-pin Will strike .if thrown forward at any time before Strike if thrown forward at any time said face 27o passes forwardly out range of movement of said tiring;

pin face SOG., Non', that situation of thoee 'memberey only occurs after the block (after reaching its extreme forward-po'sition, and being elevated to its fully locked or tiring position) has been blocked inits .tiring position by the flat. face 270 before the face 36g is out range of the liringpin face 30C; so that if allowed prematurely to go forward the pin or Slide 30 would strike the member B, and the fcartridge not be ired; and to prevent: this kind of mistire -by preventing the premature forward movement y of the iringpin, one of the objects of my prt-eentinvention. Ent when the .stop face 2T does forwardly outI of said tiring- 80 pin range of movement, as in Fig. 9, the presslure (or power in reserve) ot actuator 3T by shifting the mei'nber El? instantly brings its forwartl-e11d 3(3 up behind the block-actuator Paso this cannot bo i'zperated, 85 and not until after this blocking' is accomplished does the member lt withfflraiv the lock 7i: from the seal', for perm.itting` this to release the' tiring-pin. rlhe sear-locli, therefore, is not actually retracted until `after the tiring-pin retractor is fully retracted, nor until after the safetyaibutment QT@ passes beyond the range of the vldv irig, ;pin forward stroke` andy this does not occur until after the block Q5 is fullyv placed and blocked in 95 N its position ready for tiring; and thus the block-actuator acts through the said inter mediate device for delaying the unlockingof the until after said block-actuator shall itself have been locked in its forward cr firing position by such intermediate de vices. 1n this complete organizationof slid-` able breech-block mechanism, the Spring-device (as, for instance, the actuator 3T, ory sonic device equivalent therefor in such 01- 105 gan'ization), which operates asbetween, or

is operatively intermediate to the tiring-piny member and the sear-lockretractor, has atsuccessive times several functions. Then the tiring-pin goes to the forward end of its atrolte. .said device is an actuator for at.- once retracting the seai*lock-retractfn'g when the tiring-pin is retracted, said" device acts as a spring-operated or yielding transniitter-connection for storing up the power \\hicl1,later t on the full forward movement of the blockactuator l) will be required for advancing `tht` scar-lockeretractor into ital operative poition:.t"hi5 I powc'i storage is eileeted by the of the member Btl, (see Figs. ll and 12), while tbismembx'er is held down at its for-i ward end 36m, engaging# under the inclined guide-tare 2T ofthe main actuator, B, during the retracticui of the iringepinin thev breech -blocln thereby compressing that spring-device from its position yin Fig. l()4 to its Vposition in Figs. l1 andl. Thus fthe?- pmvei.' is stored up and held in reserveready f for operating the scar-lock -retractorfyvhenlwo stroke; this release of the lock arm or detention-arm` 36 permits the actuator 37a in-l rotates the proper time arrivestherefor, as hereinafter further explained. y

After the fully retractedV iirin -pin is caught by the Sear, and the -bloc 25 has gone forward as in Fig. 12, the block-actua? its opposite end 36 retracted out of engagev ment with the Sear-lock le, notwithstanding that at this time. the actuator 3!"l has gone to a position rearwardly ot the piyot f35. As the block-actuator B is now drawn forward' from its position in Fig. 12 to nearly the position in Fig. 9, this contact of arm 36, on the guide 27, continues to maintain the said retraction of arm 36 away from lock c, until after the forward end ot the block is fully placed into its tiring position shown in Fig. 9.v During the last part of this forwardmovement of actuator B, (in practice one-eighth to one-fourth of an inch may be so used) this actuator draws o' from the.leverarm 36m of lock 36, and also passes beyond the range of the tiring-pin st-antly by its reserve power, to operate the lock and actuator-lock 36 which thereby assumes its osition in Fig. 9, Where it is shown 'wit its front end 36 locking the member B against backward movement, while its rear end 36" has retracted the searlcck, 1, out of engagement with the searcatch 31e, thereby resetting the inertia-member 37 .in its rearward position ready for being operated by t-he recoil, and permitting the {ire-arm 'to be fired. This being done by disengaging the trigger in the .usual way', the firing-pin goesrforward, as shown in Fig. 10, being permitted to do this by the actuator face 27 being in the forward position here shown.` This operation ofV the iring-pin car ies the actuator 37v forward of the pivot 3 and thereby throws dowiilthe lock-end 36?l of member 36, so that this lockend will pass under the said guide-surface 27 on the next backward movementof actuator B; and at the same time the rearward arm 36 of this member 36 is retracted out of engagement with the lock Ic', which thus becomes engageable -again with the scar whenv the proper moment arrives therefor. rlhe entire cycle of operations may now be repeated as before. For a description of the manner of using and ejecting the cartridges, reference may behad to my prior patent.

The breech-block, as will now beseen, has combined therewith and thereon, a co actingtrain or series .of three members all co-acting, also, with a reciprocatory springactuated firing-pinf-member, which is mountsaid member of that tra-in (in this instance the rearward member thereof) is the seal, as 31, pivotally supported at 32 on the block, and is spring-actuated tor engaging theretracted firing-pin. The second mem-l ber'of such train is the sear-loek, as 1, which is shown pivotally or retractably supported ed on and carried with said block. One ,l

on the block in position for engaging the Y sear when this is itself engaged vwith the tiring-pin, thereby formingA a compound locking means for the retracted tiring-pin. And the third member, as 36, is the searloclr retractor, also shown pivotally snp-` ported on the blockl and arranged for operation by the iringpin member to-ret-ract the Sear-lock on one stroke of the tiring-pin and to release such retraction on the other stroke thereof. Thus, of this trainv of three co-.acting members, the two terminal inembers of the train coeact directly with such reciproeatory iriiig-pin member, while the middle member of that train, as k, directly co-acts with each of said terminal members. This system of the said four cooperating members carried on oi with the block, also co-act and operate with the memberl l, which combines in one device,l the blockactuator, the firing-pin retracior, and the retractor for that member (as {$6} of said train which constitutes the combined seal`- lock-retractor and block-actuator-lock.

The member 36 has the forward' leverl face, as 362 in such operative connection 'i with the block-actuator, B, as to constitute the retractor-releasing means which times the release of the sear-lock-retractor to occur after the full placing ot the block 25 in its firing position, and at the time the blockf actuator passes forward of the range of movement of the tiring-pin; thus the firing pin and sear are both left or remain in their locked positions until after the breech-block is placed and blocked in its firing position by the bloclractuator which, therefore, is the senr-release timer, wherebythe hiring.n pin transmitterconneetion is allowed to become operative for applying the power held inI reserve therefor to the withdrawal of the Sear-lock, thereby releasing the senr; and unt-il this Sear-release occurs, the liring-pin remains locked by a compound locking, since the Sear which directly locks or holds the tiring-pin retracted is itself locked into that engagement. l

When, inhany instance, the forward part or lock-arm 36m ofthe member 36 shall be` omitted, then this member '36 will constitute only the senr-lock retractor,which, as he fore, will he operated forwardly and back- '1 wardly bythe alternate st-rolfes, respectively, of the reciprocatoryfiring-pin member 30; and will also, as before,be forwardly operated bythe inertia-bar 37.. Thus the member 3,6, when arranged as herein illustrated,

is actuated in one and the seme direction (which is to withdraw ithe seardock retractor to its inoperative position relntirely to said loc-k) from the combined operation or action of the tiringepin and the said inertia-bar or member; and this result is due to force transmitted (initially from thennxin actuator'B,) through the firing-pin and the spring-device, as to the first action, and to the force ot the recoil, es to the second :1c-

tion. `These two actions occur, in practicc,-

in such quick succession .that the force of the first notion hardly becomes etleetive be fore it is supplemented by the force of the recoil, so that the tivo said forces are practically concurrent in point of time, and thus jointly operate for producing und insuring the retraction or Withdrawal of the lock retractor.

Nhen the main actuator is forced buck relatively to and with the block to the eX- tcnt of fully retracting the firing-pin, this full retraction 'of the block-mechanism o-pcrates through the inertia-member 37 (then positively actuated by the abutment 75"for ejecting the spent cartridge), and in connection with the senr-loclc-retractor to torci- 'bly and positively hold this retractor in tractor in its inelective position.

The main, or block actuator B, simultaneously holds the sear-loclr-retractor in its inefective or retracted` position While pushing back the iring-pin, and continues these concurrent functions until it has pushed the block-mechanism buck to the pointu'hcre the member 37 forcibly meets :i suitable 'trame abutment, as .the actuator l. thus operates directly on the sear-l;icli-retractor (when the forward or detention arm` as 301,

Ithereof is not omitted) and operutes indi rectly through the block itself for concurrently acting positively upon the :tear-lockrctractor by the rcuctimi of and from the lined fiume-abutnicht. Anil. since the mem ber 37 is. in this ii'istnnce. also eniploved us the 'ejector nctuutor. (in connection 1with said :ibut-ment), tout positive retraction ot the sear-locleretruchxr, the 'positive action ot the shell ejector when the block is in its 'fully retracted postumi, the iiuiintcnztni'e of the compression olf the 'iTansinilivr-connermanner.

'said main actuator, B, of its rearward stroke in the firearmnnd relatively to the breechblocir.

When the mechanism is in position for iring, as in Fi s. l-t), and should it then be desired to withdraw the unircd cartridge,` the operator by pressing on the plunger 38,

moves forward the inertia-member 37, and through the arm 5:36, shifts the member 36 for at. once unlocking the actuator B and releasing' the senr-lock which therefore locks the Sear so the tiring-pin cannot be released. The actuator B ma, now be rctraeted and the block operated to .withdrew and eject the untired cartridge; and while this is being done,` the"ring' in remains locked against being release' aceidentally or otherwise; thus the tire-arm is safe-guarded against the risk of firing the cartridge by anymeans after the manual unlocking of the action-bnr and before this bur shell have been retracted -far enough to prevent the tiring-pin :from making nearly its full stroke. My present improvements, therefore, comprise means for manually effecting the re-locking of thc senr into engagement with the retracted tiring-pin whileV the mechanism of the fire-arm is otherwise in position Afor tiring. The described manu ally-operable connection with the scar-lock retracter, 36, being arranged for retracting this member und thereby releasing the searlocii' fr While themechanism is in ring-posi tion, the retracted and unlocked' tiring-pin instantly relocked when such connection is so operated, and thereby the cartridge is safe-guarded from an accidental release of the firing-pin during the time between the operating of the member 38 and the actual retraction of the bloclenctuator; and, in

practice, this period of time may beof confA siderable duration. y

The member 30 is the firing member in the mechanism shown in -t-he drawing,- since this member supplies the power for forcing the tiring point into the cartridge primer; in this instance, also, l have sl'wwuthis point .'farried directly on the sliding tiring member 50. out in some ceses, if desired, thefiriug point may be a .st-paru piece located close l to the frontl end ot the block 25, and thus stand intermediate to the iring-member and the primer tor receiving the blow .from the snid tiring-member undl t-ransmittinnv the power thereof to the primer, in a well known Therefore in this application l regard and have used the terms firing-pin and iringuncmber as referring-to the inembcr 3G or .such :form of device as may be equivalent therefor, whether ornot such member of the mechanism has the tiring l point directly thereon.`

able for engaging the scar-lock for retract` ing this lock and unlock the scar, and a conl ne'ction operative between the firing-pin and the scar-lock retraetor and arranged for actuating this retractor and thereby retracting' the Sear lock after the backward stroke of the tiring-pin member in the block."

The combination, with the slidalole breech-block and the reciprocatory' tiring pin' member, of the sear having one catch for engaging th?,l retracted tiringpin and having a sec iiid"aiid opposingcatch for engaging a scar-lock, the scar-lock supported on 4the breech-block in position for engaging said second scar-catch, a scar-lock retractor also mounted on the breech-block and located and operable for engaging the searlock for retracting this lock ont of engagement with the'sear, and a connection -operatire between the tiring-pin and the scar-lock retraetor and arranged forwithdrawing this retractor from the scar-lock on the forward stroke of the triiigqiiii.

3. The combination, with a reciprocatory breech-block and with a reciprocatory firingpin member carried thereon, of a scar hav-A ing a catch for engaging the retracted tiring-pin, a. scar-lock retractably-siippoited on tliebreecli-bloclc in 'position for engaging and locking thesear inte engagement with the firing-pin a sear-loek-1'etractor also mountedl on the breechblock and 'located and operable forl engaging the Sear-lock for retracting this lock outI ot engagement with the' seal', and an actuation-connection"movable forwardly and `backwardly` with the firing-pin and operative between the tiring-piny rand the searlock retractor 'and arranged for retracting the Sear-lock after thc'back stroke ot the tiring-.pin and for retracting thesear-lock-retractor on the forward stroke of the tiringpin.

lneech-bloclr and the reeiprocatory iringpin member, otthesear having one catch for engaging the retractedV tiring-pin and having an opposing catch for engaging the Sear-lock, the scar-lock pivotally-supported' in position on the breech-block for engaging said opposingscar-catch, a sear-lock retractor also pivotally mounted on the breech- '4. The combination,- With the slidableA block and located forward of the sear-lock in position for engaging the scar-lock for retracting this lock out of engagement with the scar, and a retractor-actuating means movablel with the firing-.pin and therebyloeatable alternately in two operative p0si-I tions for engaging the sear-loc`k retractor rearward of its pivot ,on the back-Stroke and forwardly of its pivot on the forward stroke ot' the liringpin. and thereby retract. the Sear-lock reti-actor from the Sear-lock on the forward stroke of the firing-pin and retract the Sear-lock from the. Sear on the back strokeot" the'tiringfpin. Y

The combination, with the slidable breechfblock and the reciprocatory tiring# pin member, of the scar having one catch for en a' in fthe' retracted firinvin and`liav` g g g e P ing an opposing catch for engaging the soar.- loek, the seardockretractably supported in position on the breechfblock for engaging said. opposing scar-catch, av v Sear-lock retractor pirotally mounted onthebreech-block andV located and operable.y for engaging the sear` lock for retractin this lock ,and thereby rel lease the scar, anil a `connection comprising a spring-and. carried by the firing-pin 'in a` location thereon for engagingy the Sear-lock retractor rearward of its pivot-on the back stroke and forwardly of its pivot on the fr' ward stroke of the firing-pin, whereby to retractthe scar-lock retractor 0n the fol'- ward stroke of the tiring-pin and retract the Sear-lock from the scar on the' back stroke of the firing-pin.

bination with the slidable block, vas A25, fitted tor carrying therein a sliding firing-pin mem'- ber, and having the depending side walls, as' 2]. 21, of the sliding tiring-pin'member, as 30, having the catch, 30W; the Sear located for engaging the ii'ingpincatcl'i, 30", `and los haring a catch, as 31s for engaging a searlock; two pivots, la and 35,'located the one rearward ofthe other, and both'below the Hring-pin member forward. of the Sear andv supported by said depending side walls; a' retractable searelock mounted on the rearward pivot v and held in place vlongitudinally 4thereon betweeirthe side Walls, and

having a face located for engaging thevsearcatch 318; constantlyacting scar-lock-actuating means for vmaking the searilock nor` mally engageable with the sear; a scar-lockretractor mounted on the forward pivot 35, and held in place longitudinally thereon between the side-walls, andhaving a. rearward lever-arm in position for engaging and vretracting the. scar-loch; and, intermittently-` i acting retractor-operating means operatively intermediate to the said ret-ract'or andthe ring-pin member. Y 'y 7. ln a beech-block mechanism;` the combinat-ion with the slidableblock, as l25,6ttedl for carrying therein la sliding firing-'pin` t T e 100l 6. -l'ii a breech-block mechanism, the coinactuator, whereby to ietuate and to properly in position for engaging on' said Sear-lock member, and heving the depending side-l wells, es 2l., 21, and withv a block-actuator which also constitutes a firing-pin retrac-1 i'or, of thee-heling tiring-pin meml'ier, es S0, having; the catch 30; the senr located for engaging seid tiring-pin catch, and having the opposing catch, 31S, on the forward end of the senr for engaging e sear-'loelrg the pivotl located iforivard of the senr and belouv lhesesir-catch 31S, and supported by said.' side. the rotatively-retraotable scar-lool; supported on said pivot between said side-\\falls,aiid having the face, as k2,in 1 position Yfor lockingl ngjninstthe catch 31S when the s-ezlr enge the firing-pin catch,- searloelr-aetua"n .i ezine arranged for opereting the sen-loch toward its Sear-engaging posit-ion; :ind a combined senr-lci'li-,retractor and nloclr-actuator-loch supported between seid .side-Walls forward of the seerlock und operativelyterinediate between the Sear-lock and the. tiring-pin member and also-between the senr-lock andsaid blocktime the movements oit' the senr-lock in the mechanism.

S. -ln a, fire-arm having a slidable breechbleelr mechanism, the combination with the slideble block, the reciprocetory ring-pin nien'lber carried therein, and the Seur, of the rotatively-retrsietable scar-lock, as 7.1, a seerloclr a ctuator, as t, carried by the block and acting on the senr-lock for holding this normalty engageable with the senr, a leverarin, :is 3G, located on the block in position 'for retract-ing the Sear-lock, and a levernetuating spring-device operated by the firing-pin member on its backward stroke into active relation to said lever-arm, and having an nelnation-power greater 'than said searloclL-nctunor. v

i). lin a lire-arm having,- a slidable breechblock'iueclnnisnn the eon'ibirmtion with the slidablc block, the reeiprocetory firing-pin member ceri# fein, and the scar, of a :'-otatively-i ,Y lock, k, hav-ing the retractor-f; e 7W, constantlyacting means operative on the Sear-lock for holding this normally engg'ngreable with the senr, the lever arm 156 having n bearing face, as 36h,

fac-e Zit, and lever-actuating means arranged for operating Said lever-arm after the tiringiin meint-ier is retracted and locked in tiringposition.

lo. ln a fire-arm having; a sliduble breechbloeii' mechanism, the combination with the eldnble liloclr, and with the retractable .firing-pin member carried thereon, of the slihible bloclr-:u'etuator also opcrnbie on .its 'full rearward stroke for retreating the lirimg-pin; n ,f-rntety-loclr mechanism carried ou the l'aiocl; and 'consisting of :i cri-acting ruin off' three pivotally-supporled members,

vine-,the rearward member or Sear, the middle member or senr-look, the forward ineinber or sear-loclr-retractor, Said rear-A ward and forward members co-ucting d1- bined detention-arm and lock-arm on said forward member iu position for engaging said block-actuator during the .retraction thereby of the tiring-pin member, and Vfor locking the block-actuatorin the tiring position and instantly thereafter unlocking the Sear, substantially as set forth.

l1. In a lire-arm having a slidable breechblock mechanism, the combination with the slidable block, and with the retractable firing-pin carried thereon, of the slidable block-actuator engagenble in the block und operable on its full rearward stroke for retractingl the firing-pin; a Sear located for engaging the firing-pin when this is in its retracted position in the block; and a c0111- pound locking device mounted on the block and coinjjirising u lool-L for the Sear and a lock for block actuzxx'ir, and comprising a lever hai/ings)l a eoiuinuously-active actuavtion-connection with 'the tiring-pin member and an intermittently-ac!ing detention-connection with the "loch-actuator, and organized, substantie ,y is described, for actuation in eli ienne directione from such operative connection while this is in the forward and retracted positions thereof, respectively, and for timing these. movements by the movements relatively to each other of the firing-pin inenfber and the block-actuator.

12. In e, lire-arm having a slidable breechblock mechanism, the combination with the slideble block, and with the retractable firing pin member carried thereon, of the elidsiblit block actuator also operable on its iull rearward stroke for reti-acting the firing-pin; e senr located on the block for engaging the tiring-pin member when this is in its retracted position in the block; and a safety-lock mechanism mounted on the block and comprisin r a lock for the Sear and e lock for the b ook-actuator, and having an operatively-connected inertia-member operable by the recoil in a direction for unlocking the block-actuator, and also having operative-connection with the firing-pin member and detention-connection with block-actuator When this is realward of the firing position thereof, and or- `rfvanired for actuation 1n one direction from the inertia-member, and in alternate directions from the firing-pin' member in its forward and retracted posit-17H15, respectively,

`end :tor timing these alternate movement-s by the movements of the bloeit-actuator and of the iringqyin iumnluu, f-:uhstzintially as i'lcsoribed,

vand a lock for block-actuator, and having` operative-connection with the firing-pin and detention-connection with the block-actuator, and organized for actuation in alternate directions from the tiring-pin member in its forward and retracted positions, respectively, and for timing such alternate movements by the movements of the block-ac- -tuator and of the firing-pin member relatively to the block and to veach other.'

' 1li. In a fire-arm having a slidable breechblock mechanism, the combination with the slidable block, and with the slidable blockactuatonof a lock-controlled tiring,mecha-Y nism comprising a sliding tiring-pin member having a Sear-catch and having a lockoperating transmitter-connection,v :and Vlocated in the block for retraction by; the

block-actuator when this vniakesy its full rear-` ward stroke; a Sear iocatedfo'rengaging the catch of the retracted firing-pm. member;

' and a two-,lock safety-device operable by the co-action of the blockl-actnatbr and of Vthe sliding firing-pin memberyfgld having the two locks thereof arranged-,one for the Sear and the other forthe bibbie-actuator and organized for one beingunlocked while the other is being locked, and having lockaction-timing means operable by the (1o-action of the block-actuator and-.the transmitterwardly connection for leaving the 'Sear in locked po- .sition until the block-actuator has been -iocked in firing position.'

15. The combination, with a slidable breech-block, and with a reciprocatory firingpin member carried thereon, of abloek-actuator, as B, arranged for sliding-said block backwardlv and forwardly 'andjforretracting the tiring-pin in the blociqth 'Sear havv ing a catchy for engagingthe retracted firingpin; a sear-iock supported on the breechblock-in position for engaging and locking the sear into engagement with the firingpin; al soar-lock retractor operatively mounted on the breech-block in position forv engaging the soar-lock for retracting ,this lock and unlocking-the Sear, and having its forward -endjadapted to engage 4with the blockactuator when this actnatoriis moved rearifi 'the block, and' having the said 'forward end" in position for locking said actuator, B, when this is'in'its extreme forward; position; andv a connection operative between the firing-pin and the scar-lock retractor and arranged for retracting ehe searlock-retractoi' on the forward stroke of the iringir and to its ineffective position similtaneously with the unlocking of the block-actuator.

1G. The combination, with a -slidable l'n'eech-biock and with a retract-able firingpin member, of the block-actuatonB, arranged for sliding said block backwardly and forwardly and for retracting the tiringpin; a Sear having a catch for engaging the retracted firing-pin; a Sear-lock supported on the breech-block in position for llocking the scar i'nto engagement with the iiringpin; a combined sear-iock-retractor and bIock-actuator-loclt mounted to have an oscillating movement on the breech-block in position for retractingIthe Sear-lock and thereby unlocking the sear, and having the combined detention-arm and lock-arm' located and adapted for engaging with an inclined `guide-face of the block-actuator when this is moved rearwardly in the bloci'r,

.and havingjagloclr-face of this arm inposition-for' locking said block-actuator in Aits extreme forward position; and a connection operative between the firing-pin and the said combined sear-locli-ret-ractor andl blockactuator-iock and arranged for operating and timing this member for retracting the Sear-lock after the bacia stroke of the firinginl and when the block-actuator completes itsforward stroke, whereby the operation' ofthe sear-lock-retractor is timed to instant'ly unlock the seaion the locking of the block-actuator.

17. The combination, with a slidabie breech-block and with a reciprocatory tiringpin member carried thereon, of a block-actuator arranged for-sliding said block backwardiy and foiwardiy and for retracting the firing-pin; the Sear, ,having a catch for engaging the retracted firing-pin; a searlock retractably supported on the breechblock in position for locking the sear into engagement with the tiring-pin; Aa combined sear-lock-retractor and block-actuator-lock operative on the breech-block in position for' retractil-ig the Sear-lock and thereby unlocking the Sear, andy having a combined detention-arm and lock-ari j engaging 'with the block-aetl'lator when `is is moved rearwardly of-the block, and engaging with and locking said block-actuator when this is in its extreme forward position; and an actuationconnection carried by the riIig-pin member and in sliding engagement with said combined sear-lock-retractor and block-actuatorlock, foropereting this combined member for retracting the Sear-iock after the back stroke of the firing-pin and for r'etracting the seer-loelr-retractorgbn the forward stroke of Whring-pin, theoganiaation being such,

renegar-block,

50 termediate' to the substantially as described, that the operation ofthe sear-lock-retractor is timed to unlock the sear when the block-actuator reaches the end of its forward stroke, and that the sear- 5 lock retractor is retracted to its inedective position simultaneously with the unlocking of the block-actuator after the firing-pin reaches its forward position. Y

18. lheMcombinat1on, ,witlimthehshdable the member operable therein, andthe reciprocatory firing-pin member, of the Sear carried on said block in osition for engaging the retracted firing-pm, the Sear-lock movably supported on the breech-block in position for engaging, locking, and releasing the sear, a scar-lock retractor also mounted on the breech-block in position for engaging the Sear-lock for reti-acting this lock out of engagement with the Sear, a spring-operated connection carried by the firing-pin in position for advancing the scar-lock reti-actor into operatingposition on the back-stroke of the firing-pin and for retracting thesearlock-retractor into its inetfectireifpsition on the forward stroke ofthe iring-pin, and a connection .between the inertia-member and the scar-lock retractor, arranged to withdraw the scar-lock -from the Sear on the y baclcstroke of the firing-pin, and withdraw the Sear-lock retractor from the Sear-lock by the combined action of the forward stroke of the firing-pin and of the recoil operating through the inertia-member. ,3519. The combination, with the slidable breech-block, the reciprocatory inertia-member operable therein by the recoil of the tirearm, and the reciprocatory tiring-pin, of the sear c arred onsaid blockl in position for engaging the retracted firing-pin, the searlock movablyl supported onthe block inposition for locking and releasing the scarf a scar-lock-'retractor also 'movablr mounted on v.

saidbloekin position thereon or'retracting the Sear; lan' operative "connection 'between towithdraw the Sear-lock and reset the in-'icrtia-member 1n, position ready for opera-4 tion by the recoil `when the tiring-pin shall, bereleased bythe sear." ,v I 20. Thevcombination, with the slida'ble breech-block, the sliding inertia-member op-l erable therein, and the reciprocatory ytiringpin member, 'ofl the Sear having one catch for engagingy the retracted tiring-pin and an ppposing scar-lock catch, the' scar-lock pivreciprocatory A inertia? otally-supported in position on the breeclr block for engaging said opposing scar-'catch`y a Searlock retractor also pivotally n'iounted on the breech-block and located and opera'- ble for engaging the scar-lock tor rctlacting this lock ont ot' engagement with the scar,

an actuation-connection carried by thev tiring-pin and thereby alternately located in position for engaging the Sear-lock retractor Nreaiiifatl 'oftspivot on the back-stroke and forwardly' of its pivot on the forward stroke of the firing-pin, and a `connection between the inertiamember andthe scar-lock retractor arranged to withdraw the aearlock f from lthe sear on the back-stroke of 'the firing-pin, and to withdraw the Sear-lock retractor from the scar-locl-z-by the combined laction of the forward stroke ot' the tiringpin and of the recoil operating,through-'thtI` inertia-member.

2l.' The combination, with the slidablc` breech-block, an inertia member operable relatively thereto, and the rcciprocatory tiring`` f 'pin member, of the senr having onecatch `t'or engaging the retracted `tiring-pin and having an opposing catch for engaging the Sear-lock, the Sear-lock pivotally ,snpl'iorted `in position on the breech-,block for engaging said opposing Sear-catch, a scar-lock retractor also pivotally mounted on the breechblock and located vand operable for engaging the Sear-lock for unlocking thc scar, a transmitter-connection movable tiring-pin into positions for engaging the Sear-lock retractor rearward of itspivot on the back-stroke and .forward of its pivot on' the forward stroke of the tiring-pin, and nconnection between lthe inertia-member and the scar-lock retractor, and arran ed to release the Sear after the back-stro e of the tiring-pin, and retract the Sear-lock retractor bythe combined action of the forward with vthe l stroke of the'tiring-pin and' of the recoil operating through the inertiamembex. i

22. The combination, with the slidable` breech-block, the reciprocatory inertia-mami' `ber,`a`nd Ithe reciprocatory tiring-pinmember,y lof the seai-` carried on said block in po-vv` -Siti'oiiif'r engaging the retracted firing-pin; y

thsear-lock movably` Supported on thev `V breech-block in position for locking, and releasingl the Sear; a senr-lock retractor'also;

'mountedfon the breech-block, and in posi? tion forengaging and retracting, the searlock; a spring-operated connection carried by the i-ring-pin member in position for advancing the Sear-lock retractor intol operain -pin vand for retractin`, ".the sea.r -lock ret ctor Ainto its ineffective position on the f @ward stroke of the firing-pin, and a con# notion between the inertia-membcr'and a l s er-arm ofthe Sear-lock retractor, whereby to Withdraw the scar-lock from the scar tive-position on the back-stroke of the firafter the bark-stroke of the firing-pin. and the breech-block. of the sear having a catch withdraw the scar-lock retractor from the scar-lock by the combined action of the:

engaging and locking` the scar into engagefnrward stroke ol' the tiring-pin and of the recoil operating through lthe ineitia-n'iein-j a spate' forl receiving an inertiii-member. the i slidiiig-inertia-meinlwr operable therein. and the, recuirmatory firing-pin member, ot' the catch: the Hair-lock retiactably-snpported in p` sition on the breech-block for engaging said opposing Sear-catch, a soar-lock retracior also retractably-mounted onnthe breechblock and located and opera-blefor engaging the scar-lock for retract-ing t-liislock and unlocking the Sear. a transmitter-contiction carried by the tiring-pin and locatedasfor engaging the Sear-lock retractor near r`its rearward end on the back-stroke and near its forward end on the forward stroke of the tiring-pin, and a connectionl between the' inertia-member and the Sear-lock retracton whereby to retract the Sear-lock froni tlie -cessible to the operator when the breech- Sear after the back-stroke of tlle tiring-pin; and to retract the Sear-lock retractor from the Sear-lock by the combined action of the forward stroke of the firing-pin and of the recoil operating through the inertiamember.

24.- Tlie combination, with the slidable for engaging the retracted firing-piaga scarloc'k supported on said block in position for ment with the tiring-pinr` a scar-lock ret ractor also mounted on the breech-block and located and operable for engaging thc scar-lock 'for retracting this lock ont of engagement with thescar. a tranhinit-ter-c(:imei-tion operative between and upon the tiring-pin Yand the scar-lock retractor and arranged for retract- 'sear having. one catch for engaging the reg trat-ted tiring-pin and an opposing Sear-lock retractor on the forward stroke ot the tirbreech-block an inertia-member operable:`

relatireltr thereto, and the reciprocatory firing-pin member, of the Sear having one catch I'or engaging the retracted firing-pin and lhaving an opposing catch for engaging the Sear-lock; the scar-lock retractably-fsupported in position on the breech-block` for engaging said opposing Sear-catch: a'q'searlock retractor also retractably mountdlon the breech-block and located and operabi for engaging the scar-lock for retract-ng this Vlock out of engagement with the searf;`

a retractor-actuating connection movable with the firing-pin and located for engagg ing tlie`;sear-lock retractor near its rearward end-on'the back-'stroke and near its forward t end on t/he forward stroke of the tiring-pin, andv a connection between the inertia-meinber and the Sear-lock retractor, thereby to i retract the Sear-lock and release the Sear; after the back-stroke of the tiring-pin, and

nretract the Sear-lock reti'actor by the combined action of the forward stroke of the firing-pin and of the recoil operating through the iiiertia-i'nembcr.

25. In a fire-arm having on its frame a fixed abut-ment located for operating an inertia-member, and having a slidable breechbloek mechanism, the combination with a recip'rocatory lfiring-pin member carried by lthe barrel of the {irc-arm.

ing the scar-lock on the back stroke ol the firing-pin and for retracting the scar-locking-pin, and an inertia-member movablein the block mechanism and connected withV the sear-lock-retractor for retracting this retractor by the recoil when the tiring-pin goes to its( forward position and .the arm is tired, and for positivelv holdingl tliis'retractor in itsl retracted and ineffective position from the action of the said abutment whenand while the block and ,the firingpinare both fully retracted.

QG. The combination, with the slidable breech-block, a' manually-operable memberr carried by said block and located Ito be aeblock is in tiring-position, and thercciproeatery tiring-pin', of lthe seal' carried on said lblock in position `for engaging the retracted leasing the Sear, a Seau-lock-retractor also#l morably mounted 611 said block in position thereon for reti-acting tliefsear-lock, and an operative connect-ion beti-vee'nuthe vsear-lockretraetor and the manually-operable member and arranged for releasing the searlook to thereby relock the Sear and firingpin for safe-guarding the until-ed cartridge, when this is about to be withdrawn fromr 2T. The combination, with rfa' slidable breech-block and with-a reciprdcatory firing-pin member carried thereon, "of a blockngedffor-.sliding said block Y 'rtlql-y land for retract- "aving a catch l y firing-pin; a ooksufportedi t breech-block in positi'oir forlockingt'he' sear int-o engageineiitf with the tiring-pin; a combined searlock retractor and block actuator lock mounted oli tl'iebreech-block in position for retractingt-lie scar-lock and thereby unlocking the sear, and for lool-fig said blockactuator when this is in its extreme forward position; and a manually-operable member carried on the block, and operatively connected with said combined sear-lock-retracttor and block-actuator-lock, for retractingt this member andv releasing the Sadblock-f actuator and the Sear-look when the mechaioo` nism is in the firing position, whereby the manual operation of the sear-loclr-retractor andthe scar-lock relooke the scar while the block-actuator is at the end ofits forward stroke, for thereb7 safe-guarding the un- Aiired'cartridge when this is about to be Withdrawn from the barrel of the {ire-arm.

28. In a tire-arm having a slidable breechblock mechanism, the combination with the slidable Yblocflrfand with a reciprocatory tiring-member carried thereon, of a slidable block-actuator engageable in the block and `,operable on its rearward stroke for retracting the tiring-member; a sear located for enrg;a'mg the retracted firing-member, and

a compound locking device mounted on the a' Vlock for block-actuator, and lock retracting devicesl including'the recprocatory firing-member and arranged operatively intermediate to the said locks and the block-actuator. f

30. In a reciprocatory' breech-block mechanism, having a retractable firing-member and a s ear for engaging the retracted firing member, the combinationfof a Sear-lock retractably-supported on the breech-block in position for locking the sear into .engage- -mentwith the retracted firingmember, a

Sear-lock retractor alsov mounted'y on the ibreech-block and located and 'operable for i retractable breech-block below the firing-member and engaging the 'soar-lock for ret-ractingthis v, .lock outef engagement 'Withithe sear,a`

. block-actiiater which is also a'block placer'- andl retractor-operating means' be'- releaser he said placer-releaser and the seartween t lock-retractor and arranged forl retracting` the Sear-lock on the back-stroke of the ring-member.

3l. In a reciprocatroiry breech-block mechanism, having 'a retractable firing-member and a Sear forengaging the retracted iiringnember,'the combination of the relatively- Sear-lock supported on the forward of the scar for locking the Sear. into engagement with the retracted tiring for engaging and rotatively-retracting the scar-lock out of engagement with the scar, a

"member, a scar-lock retrartor 'also mounted. on the breech-block and located and operable nti-14,563

slidnble block. placer-releascr, and retractoroperating means between the said placerreleaser and the sear-lock-retractor and arranged for retracting the eear-lock on the` back-stroke of the iyrmg-member.

in a. reciprocatory breech-block mechaniem, having a retractable firing-member and a scar for engaging tbe retracted firingmember, the combination of a Sear-lock rev tractably-supported on the breech-lock inv position for locking the Sear into engagement with the retracted firing member, a

Sear-lock retractor alec mounted von theV breech-block and located and operable for engaging the Sear-lock for retracting this lock out ot engagement with the scar, a block-actuator which is also a block placerreleaser, and retractor-operating means between the/said placer-releaser and lthe searlock-retractor and comprising the firingmember and a lever operable thereby, and

arranged for retracting the sear-lock-retractor on lthe complete forward stroke ofthe firing-member.

33. ln a reciprocatory breech-block mechanism,` having a retractable tiring member and a Sear 4tor engaging the retracted irih member, the combination with the Sear-10c 1, retractably-supported on the' breechblock, a sear-lock-actuating device on the` breech-lock and located for engaging the 'Sear-lock for retracting this lock out of en gagement `with the Sear, block-placer-re- .leasen and operating means-including the tiring-member between t-he saidy p1acerre` leaser and the* sear-lock-actuating device and arranged for retracting' the scar-lock 'on the back-stroke oi the firing-member and for operating the sear-lo'ck-actating device on the complete forward strokeof theringmember. e

v34. vThe combination, lwith a." VVslidable breech-block and with a retractable tiring member, of theblocjk-actuator arrangedfor sliding `said block backwardly and `for'- Wardly vand for retracting'the firing-"meme-` ber; a searhaving a catch for engaging the retracted firin -m'emberg 'a Sear-lock supported on t-he the breech-block in position for retracting the scar-lock and for locking the blockactuator'f in its" firing-position, and thereby nn'lck the searfvfhile locking the `blockbreech-block and with a retractable firing reeclnbl'ock in position'forf locking the Sear into engagement with the* firing-membegand a combined sear-lock-revtractor and blo'clt-aetuator-lock mounted on member, of the block-actuator'arranged forl sliding said block backwardly and forwardly and for retx'acting the tiring-member; a/sear having a catch for engaging the retracted firing-member; a scar-lock supported on the breechblock in position for actuator in its firing position. und tllcrvby lockmg the senr lnto engagement wlth the ,u nlovk thv wm' wlzllo lwkmg the blockf1'1ng-member, and n lever havlng at one actuator.

end n sear-lock-retractor and at the other JOIIN D. lIZDEIISl-IN. 5 end a block-actuator-lock, and mounted on `Witnesrsesr the breech-block in posit-ion for retracting T. S. I-Iot-'ollx'rom the Sear-lock 'and for lockingvthe block- JUHNSONNIURQX. 

